Finding the Fourth Proportional to 119,401.75, 164,767.90 and 65,678.09

Step by Step Solution

1. Step 1: Write the proportion equation
   119,401.75 : 164,767.90 = 65,678.09 : x
2. Step 2: Convert to fraction form
   119,401.75/164,767.90 = 65,678.09/x
3. Step 3: Cross multiply
   119,401.75x = 164,767.90 × 65,678.09
4. Step 4: Simplify right side
   119,401.75x = 10,821,640,965.31
5. Step 5: Solve for x
   x = 10,821,640,965.31/119,401.75
6. Step 6: Final answer
   x = 90,632.18